The minimum recommended application temperature for TotalBoat High Performance 2:1 Epoxy using the 2:1 Slow Hardener is 55°F.
If High Performance 2:1 Epoxy with the any of the 2:1 hardeners is used below the minimum recommended temperature, the working properties and cured properties will not be reflective of the Technical Data Sheet. The viscosity will increase as the temperature drops, and the cure speed will be dramatically extended in cooler temperatures.
Once the ambient/product temperature dips below 35-40°F (depending on the hardener, other conditions, and application thickness), the epoxy may not be able to generate enough heat to cure at all, until it has been brought up closer to or above the minimum working temperature. Other cosmetic and cured performance attributes may also suffer from using the product below the advised temperatures.